mkCoqDerivation: warn on superfluous enableParallelBuilding (#485720)

pkgs/build-support/coq/default.nix

@@ -98,6 +98,7 @@ let
       "dropAttrs"
       "dropDerivationAttrs"
       "keepAttrs"
+      "enableParallelBuilding"
     ]
     ++ dropAttrs
   ) keepAttrs;
@@ -201,7 +202,10 @@ stdenv.mkDerivation (
         );
       buildInputs =
         args.overrideBuildInputs or ([ coq ] ++ (args.buildInputs or [ ]) ++ extraBuildInputs);
-      inherit enableParallelBuilding;
+      enableParallelBuilding =
+        lib.warnIf (args ? enableParallelBuilding && args.enableParallelBuilding == true)
+          "mkCoqDerivation: enableParallelBuilding is enabled by default; remove the explicit setting"
+          enableParallelBuilding;
 
       meta =
         (

pkgs/development/coq-modules/compcert/default.nix

@@ -92,8 +92,6 @@ let
       MenhirLib
     ];
 
-    enableParallelBuilding = true;
-
     postPatch = ''
       substituteInPlace ./configure \
         --replace \$\{toolprefix\}ar 'ar' \

pkgs/development/coq-modules/interval/default.nix

@@ -68,7 +68,6 @@ mkCoqDerivation rec {
     ++ lib.optionals (lib.versions.isGe "4.2.0" defaultVersion) [ gnuplot_qt ];
   useMelquiondRemake.logpath = "Interval";
   mlPlugin = true;
-  enableParallelBuilding = true;
 
   meta = {
     description = "Tactics for simplifying the proofs of inequalities on expressions of real numbers for the Coq proof assistant";